| // Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| fn iter_vec<T, F>(v: Vec<T>, mut f: F) where F: FnMut(&T) { for x in &v { f(x); } } |
| |
| pub fn main() { |
| let v = vec![1, 2, 3, 4, 5]; |
| let mut sum = 0; |
| iter_vec(v.clone(), |i| { |
| iter_vec(v.clone(), |j| { |
| sum += *i * *j; |
| }); |
| }); |
| println!("{}", sum); |
| assert_eq!(sum, 225); |
| } |
